diff --git a/src/views/home/components/Input.vue b/src/views/home/components/Input.vue
index f0529eb..4dc8e35 100644
--- a/src/views/home/components/Input.vue
+++ b/src/views/home/components/Input.vue
@@ -378,7 +378,12 @@
 
 		// Insert tag at the current cursor position
 		const selection = window.getSelection()
-		if (selection && selection.rangeCount > 0) {
+
+		// 检查selection是否在editorRef内部，不在则强制使用editorRef
+		const isInEditor =
+			editorRef.value && selection && editorRef.value.contains(selection.anchorNode)
+
+		if (isInEditor && selection && selection.rangeCount > 0) {
 			const range = selection.getRangeAt(0)
 			range.insertNode(tag)
 
@@ -397,7 +402,7 @@
 			// ensure editor has focus
 			editorRef.value && (editorRef.value as HTMLElement).focus()
 		} else if (editorRef.value) {
-			// If no selection, append directly to editor and place caret after
+			// If no selection in editor, append directly to editor and place caret after
 			editorRef.value.appendChild(tag)
 			const zwsp = document.createTextNode('\u200B')
 			editorRef.value.appendChild(zwsp)